Patents by Inventor Kamlesh Advani

Kamlesh Advani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Presentation of a read-only clone LUN to a host device as a snapshot of a parent LUN
    Patent number: 8843718
    Abstract: A method, apparatus, and system of presentation of a read-only clone Logical Unit Number (LUN) to a host device as a snapshot of a parent LUN are disclosed. In one embodiment, a method includes generating a read-write clone LUN of a parent LUN and coalescing an identical data instance of the read-write clone LUN and the parent LUN in a data block of a volume of a storage system. A block transfer protocol layer is modified to refer the read-write clone LUN as a read-only clone LUN, according to the embodiment. Furthermore, according to the embodiment, the read-only clone LUN is presented to a host device as a snapshot of the parent LUN.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: September 23, 2014
    Assignee: Netapp, Inc.
    Inventors: Ameya Prakash Usgaonkar, Kamlesh Advani
  • Restoration of a parent LUN through modification of a read-write clone LUN as the parent LUN
    Patent number: 8793447
    Abstract: A method, apparatus and system of restoration of a parent LUN through modification of a read-write clone LUN as the parent LUN are disclosed. In one embodiment, the method includes transforming a snapshot of a parent LUN from a read-only state to a read-write clone LUN using a target module of a storage system. The method also includes changing a first data structure of a block transfer protocol to refer to the parent LUN as another clone LUN. Further, the method includes modifying a second data structure of the block transfer protocol to refer to the read-write clone LUN as the parent LUN. Then, the method includes restoring the parent LUN when the modification of the second data structure is completed.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: July 29, 2014
    Assignee: Netapp, Inc.
    Inventors: Ameya Prakash Usgaonkar, Kamlesh Advani
  • PRESENTATION OF A READ-ONLY CLONE LUN TO A HOST DEVICE AS A SNAPSHOT OF A PARENT LUN
    Publication number: 20130254481
    Abstract: A method, apparatus, and system of presentation of a read-only clone Logical Unit Number (LUN) to a host device as a snapshot of a parent LUN are disclosed. In one embodiment, a method includes generating a read-write clone LUN of a parent LUN and coalescing an identical data instance of the read-write clone LUN and the parent LUN in a data block of a volume of a storage system. A block transfer protocol layer is modified to refer the read-write clone LUN as a read-only clone LUN, according to the embodiment. Furthermore, according to the embodiment, the read-only clone LUN is presented to a host device as a snapshot of the parent LUN.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 26, 2013
    Applicant: Network Appliance, Inc.
    Inventors: Ameya Prakash Usgaonkar, Kamlesh Advani
  • Presentation of a read-only clone LUN to a host device as a snapshot of a parent LUN
    Patent number: 8402237
    Abstract: A method, apparatus, and system of presentation of a read-only clone Logical Unit Number (LUN) to a host device as a snapshot of a parent LUN are disclosed. In one embodiment, a method includes generating a read-write clone LUN of a parent LUN and coalescing an identical data instance of the read-write clone LUN and the parent LUN in a data block of a volume of a storage system. A block transfer protocol layer is modified to refer the read-write clone LUN as a read-only clone LUN, according to the embodiment. Furthermore, according to the embodiment, the read-only clone LUN is presented to a host device as a snapshot of the parent LUN.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: March 19, 2013
    Assignee: NetApp, Inc.
    Inventors: Ameya Prakash Usgaonkar, Kamlesh Advani
  • RESTORATION OF A PARENT LUN THROUGH MODIFICATION OF A READ-WRITE CLONE LUN AS THE PARENT LUN
    Publication number: 20110246733
    Abstract: A method, apparatus and system of restoration of a parent LUN through modification of a read-write clone LUN as the parent LUN are disclosed. In one embodiment, the method includes transforming a snapshot of a parent LUN from a read-only state to a read-write clone LUN using a target module of a storage system. The method also includes changing a first data structure of a block transfer protocol to refer to the parent LUN as another clone LUN. Further, the method includes modifying a second data structure of the block transfer protocol to refer to the read-write clone LUN as the parent LUN. Then, the method includes restoring the parent LUN when the modification of the second data structure is completed.
    Type: Application
    Filed: March 30, 2010
    Publication date: October 6, 2011
    Applicant: NETWORK APPLIANCE, INC.
    Inventors: Ameya Prakash Usgaonkar, Kamlesh Advani
  • PRESENTATION OF A READ-ONLY CLONE LUN TO A HOST DEVICE AS A SNAPSHOT OF A PARENT LUN
    Publication number: 20110173401
    Abstract: A method, apparatus, and system of presentation of a read-only clone Logical Unit Number (LUN) to a host device as a snapshot of a parent LUN are disclosed. In one embodiment, a method includes generating a read-write clone LUN of a parent LUN and coalescing an identical data instance of the read-write clone LUN and the parent LUN in a data block of a volume of a storage system. A block transfer protocol layer is modified to refer the read-write clone LUN as a read-only clone LUN, according to the embodiment. Furthermore, according to the embodiment, the read-only clone LUN is presented to a host device as a snapshot of the parent LUN.
    Type: Application
    Filed: January 8, 2010
    Publication date: July 14, 2011
    Inventors: AMEYA PRAKASH USGAONKAR, KAMLESH ADVANI